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updated code to python 3.7 #4

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32 changes: 16 additions & 16 deletions MerkleTrees.py
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Original file line number Diff line number Diff line change
Expand Up @@ -33,11 +33,11 @@ def create_tree(self):
current_right = ''

# 3.5 Apply the Hash 256 function to the current values
current_hash = hashlib.sha256(current)
current_hash = hashlib.sha256(current.encode())

# 3.6 If the current right hash is not a '' <- empty string
if current_right != '':
current_right_hash = hashlib.sha256(current_right)
current_right_hash = hashlib.sha256(current_right.encode())

# 3.7 Add the Transaction to the dictionary
past_transaction[listoftransaction[index]] = current_hash.hexdigest()
Expand Down Expand Up @@ -68,7 +68,7 @@ def Get_past_transacion(self):

# 5. Get the root of the transaction
def Get_Root_leaf(self):
last_key = self.past_transaction.keys()[-1]
last_key = list(self.past_transaction.keys())[-1]
return self.past_transaction[last_key]

# Declare the main part of the function to run
Expand All @@ -90,24 +90,24 @@ def Get_Root_leaf(self):
past_transaction = Jae_Tree.Get_past_transacion()

# f) Get the last transaction and print all
print "First Example - Even number of transaction Merkel Tree"
print 'Final root of the tree : ',Jae_Tree.Get_Root_leaf()
print("First Example - Even number of transaction Merkel Tree")
print('Final root of the tree : ',Jae_Tree.Get_Root_leaf())
print(json.dumps(past_transaction, indent=4))
print "-" * 50
print("-" * 50)

# h) Second example
print "Second Example - Odd number of transaction Merkel Tree"
print("Second Example - Odd number of transaction Merkel Tree")
Jae_Tree = Jae_MerkTree()
transaction = ['a','b','c','d','e']
Jae_Tree.listoftransaction = transaction
Jae_Tree.create_tree()
past_transaction = Jae_Tree.Get_past_transacion()
print 'Final root of the tree : ',Jae_Tree.Get_Root_leaf()
print('Final root of the tree : ',Jae_Tree.Get_Root_leaf())
print(json.dumps(past_transaction, indent=4))
print "-" * 50
print("-" * 50)

# i) Actual Use Case
print "Final Example - Actuall use case of the Merkle Tree"
print("Final Example - Actuall use case of the Merkle Tree")

# i-1) Declare a transaction - the ground truth
ground_truth_Tree = Jae_MerkTree()
Expand All @@ -126,19 +126,19 @@ def Get_Root_leaf(self):
tampered_Tree_root = tampered_Tree.Get_Root_leaf()

# i-3) The three company share all of the transaction
print 'Company A - my final transaction hash : ',ground_truth_root
print 'Company B - my final transaction hash : ',ground_truth_root
print 'Company C - my final transaction hash : ',tampered_Tree_root
print('Company A - my final transaction hash : ',ground_truth_root)
print('Company B - my final transaction hash : ',ground_truth_root)
print('Company C - my final transaction hash : ',tampered_Tree_root)

# i-4) Print out all of the past transaction
print "\n\nGround Truth past Transaction "
print("\n\nGround Truth past Transaction ")
print(json.dumps(ground_truth_past_transaction, indent=4))

print "\n\nTamper Truth past Transaction "
print("\n\nTamper Truth past Transaction ")
print(json.dumps(tampered_Tree_past_transaction, indent=4))





# ---- END OF THE CODE ------
# ---- END OF THE CODE ------